123202321311020 has 384 divisors, whose sum is σ = 318885396480000. Its totient is φ = 39855999456000.

The previous prime is 123202321310993. The next prime is 123202321311023. The reversal of 123202321311020 is 20113123202321.

123202321311020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (123202321311023) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 37896744395 + ... + 37896747645.

It is an arithmetic number, because the mean of its divisors is an integer number (830430720000).

Almost surely, 2^{123202321311020} is an apocalyptic number.

123202321311020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123202321311020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159442698240000).

123202321311020 is an abundant number, since it is smaller than the sum of its proper divisors (195683075168980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123202321311020 is a wasteful number, since it uses less digits than its factorization.

123202321311020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4386 (or 4370 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 123202321311020 its reverse (20113123202321), we get a palindrome (143315444513341).

The spelling of 123202321311020 in words is "one hundred twenty-three trillion, two hundred two billion, three hundred twenty-one million, three hundred eleven thousand, twenty".